Journal article
Non-stationarity and dissipative time crystals: Spectral properties and finite-size effects
- Abstract:
- We discuss the emergence of non-stationarity in open quantum many-body systems. This leads us to the definition of dissipative time crystals which display experimentally observable, persistent, time-periodic oscillations induced by noisy contact with an environment. We use the Loschmidt echo and local observables to indicate the presence of a finite sized dissipative time crystal. Starting from the closed Hubbard model we then provide examples of dissipation mechanisms that yield experimentally observable quantum periodic dynamics and allow analysis of the emergence of finite sized dissipative time crystals. For a disordered Hubbard model including two-particle loss and gain we find a dark Hamiltonian driving oscillations between GHZ states in the long-time limit. Finally, we discuss how the presented examples could be experimentally realized.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 2.8MB, Terms of use)
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- Publisher copy:
- 10.1088/1367-2630/ababc4
Authors
- Publisher:
- IOP Publishing
- Journal:
- New Journal of Physics More from this journal
- Volume:
- 22
- Issue:
- August 2020
- Article number:
- 085007
- Publication date:
- 2020-08-28
- Acceptance date:
- 2020-08-03
- DOI:
- EISSN:
-
1367-2630
- Keywords:
- Pubs id:
-
1105845
- Local pid:
-
pubs:1105845
- Deposit date:
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2020-08-17
Terms of use
- Copyright holder:
- Booker et al.
- Copyright date:
- 2020
- Rights statement:
- ©2020 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.
- Licence:
- CC Attribution (CC BY)
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